Word Origin & History

guarantee 1679, perhaps via Sp. garante, from O.Fr. guarantie, pp. of fem. guarantir "to protect," from guarant "warrant," from Frank. *warjand-s, from P.Gmc. *war-, from PIE base *wer- "to cover" (see warrant). For form evolution, see gu-. Originally "person giving something as security," sense of the "pledge" itself (which is properly a guarranty) first recorded 1786. The verb is attested from 1791.

Example Sentences for guarantee

Their agreement doesn't guarantee certainty, only a good bet.

How I guarantee happiness at the end of every course.

It may be a glitch, but I guarantee you that they are using it to their full advantage.

He had very good news, he said: He could guarantee that the next morning we would see a bonobo.

The triennial competition she has endowed will guarantee that future generations can share her appreciation.

Adequate preheating and sufficient coals should guarantee that the grill is hot when it is time to cook fish.

The bank-loan guarantee and expanded deposit-insurance limits should eliminate that risk.

The shopping guarantee works two ways.

Because almost all battery guarantees are prorated by the month.

There's no guarantee, though, that your fund's yield will exceed the rising rate of inflation.